Great King Munwon

Great King Munwon (born Wang Jeong) was a Korean Royal Prince as the 5th son of Taejo of Goryeo and Queen Sinmyeong, also the younger brother of Tae, Yo and So. He later married his half sister, had 2 sons and a daughter who would eventually become the 2nd wife of King Gyeongjong, his nephew. Although his death date was unclear, it considered that he died during the latter half of Gwangjong's reign.

Family
Parents Consorts and their respective issue(e):
 * Father: Wang Geon, Taejo of Goryeo (31 January 877 – 4 July 943)
 * Mother: Queen Sinmyeongsunseong of the Chungju Yu clan
 * Queen Munhye of the Chŏngju Yu clan, his half-sister
 * Prince Cheonchu, 1st son
 * Prince Aji, 2nd son
 * Queen Heonui of the Chungju Yu clan ( 헌의왕후 유씨), 1st daughter
 * Son-in-law: Gyeongjong of Goryeo

In popular culture

 * Portrayed by Ji Soo in the 2016 SBS TV Series Moon Lovers: Scarlet Heart Ryeo.